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Finding the Fourth Proportional to 48,813.40, 73,220.10 and 11,877.40

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Solution

The fourth proportional to 48,813.40, 73,220.10 and 11,877.40 is: 17,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,813.40 : 73,220.10 = 11,877.40 : x
  2. Step 2: Convert to fraction form
    48,813.40/73,220.10 = 11,877.40/x
  3. Step 3: Cross multiply
    48,813.40x = 73,220.10 × 11,877.40
  4. Step 4: Simplify right side
    48,813.40x = 869,664,415.74
  5. Step 5: Solve for x
    x = 869,664,415.74/48,813.40
  6. Step 6: Final answer
    x = 17,816.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.